Home / 12,863.88-19,290.90-4,542.34

Finding the Fourth Proportional to 12,863.88, 19,290.90 and 4,542.34

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Solution

The fourth proportional to 12,863.88, 19,290.90 and 4,542.34 is: 6,811.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,863.88 : 19,290.90 = 4,542.34 : x
  2. Step 2: Convert to fraction form
    12,863.88/19,290.90 = 4,542.34/x
  3. Step 3: Cross multiply
    12,863.88x = 19,290.90 × 4,542.34
  4. Step 4: Simplify right side
    12,863.88x = 87,625,826.71
  5. Step 5: Solve for x
    x = 87,625,826.71/12,863.88
  6. Step 6: Final answer
    x = 6,811.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.